Systems and methods for predicting HVAC filter change
US11241646B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 2021 |
| Grant date | Feb 8, 2022 |
| Priority date | — |
| Expiry date | May 14, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F2130/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Computer-implemented systems and methods for estimating a replacement status of an HVAC air filter. Outdoor weather data (e.g., outdoor temperature information), is obtained. A Total Runtime Value of the HVAC system is determined based upon the obtained outdoor weather data. Finally, a replacement status of the air filter is estimated as a function of a comparison of the Total Runtime Value with a Baseline Value. By correlating air filter replacement status with an estimated runtime of the HVAC system, a credible predictor of air filter usage is provided. By estimating fan runtime based on easily-obtained outdoor weather data, the methods are readily implemented with any existing HVAC system and do not require installation of sensors or other mechanical or electrical components to the HVAC system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.